Sha256: ea935154fa971c0954877674137d760738364ed6f0cfeddca2af94d27dba7aa4
Contents?: true
Size: 1.42 KB
Versions: 5
Compression:
Stored size: 1.42 KB
Contents
Jax.Mesh.Sphere = Jax.Class.create(Jax.Mesh, {
initialize: function($super, options) {
options = options || {};
this.slices = options.slices || 30;
this.stacks = options.stacks || 30;
this.radius = options.radius || 1;
$super(options);
},
init: function(vertices, colors, textureCoords, normals, indices) {
var slices = this.slices, stacks = this.stacks;
var radius = this.radius;
var slice, stack;
for (slice = 0; slice <= slices; slice++) {
var theta = slice * Math.PI / slices;
var sinth = Math.sin(theta);
var costh = Math.cos(theta);
for (stack = 0; stack <= stacks; stack++) {
var phi = stack * 2 * Math.PI / stacks;
var sinph = Math.sin(phi);
var cosph = Math.cos(phi);
var x = cosph * sinth;
var y = costh;
var z = sinph * sinth;
var u = 1 - (stack / stacks);
var v = 1 - (slice / slices);
normals.push(x, y, z);
textureCoords.push(u, v);
vertices.push(radius * x, radius * y, radius * z);
colors.push(1, 1, 1, 1);
}
}
for (slice = 0; slice < slices; slice++) {
for (stack = 0; stack < stacks; stack++) {
var first = (slice * (stacks + 1)) + stack;
var second = first + stacks + 1;
indices.push(first, second, first+1);
indices.push(second, second+1, first+1);
}
}
}
});
Version data entries
5 entries across 5 versions & 1 rubygems